ref: 7f7c5ed91ee14971a0aaa012d4cb434a5530da95 dir: /lib/Data/Monoid.hs/
module Data.Monoid(module Data.Monoid) where import Primitives import Data.Semigroup class Semigroup a => Monoid a where mempty :: a mappend :: a -> a -> a mappend = (<>)